'Vitamin A' credits
Text: 'Vitamin A vital for vision'
Wikipedia Vitamin A
Vitamin A (or Vitamin A Retinol, retinal, and four carotenoids including beta carotene) is a vitamin that is needed by the retina of the eye in the form of a specific metabolite, the light-absorbing molecule retinal, that is necessary for both low-light (scotopic vision) and color vision.
Text: 'Some people have a 2 beta-carotene to 1 Vitamin A conversion rate' 'Others have 20 to 1
conversion rate needing more beta-carotene'
Chris Masterjohn at 23:00
"A radiolabeled tracer study showed, that could track the beta-carotene as it traveled through the body showed that, the real conversion factor was 9 to 1 not 2 to 1 on average. But if you look at each
individual it ranged from 2 to 1, to 20 to 1... "
Text: 'Eating liver once a week meets the vitamin A requirements'
Chris Masterjohn at 24:45
"If you ate liver once a week then you would get the RDA for vitamin A."
Also from Chris Masterjohn
The best plant source of vitamin A is red palm oil. Its oily matrix makes its carotenes more readily converted to vitamin A and its high content of vitamin E and low content of the polyunsaturated linoleic acid further augment the convertibility of its carotenes and also protect against their potentially destructive effects. It is pure speculation, however, to suppose palm oil can be considered functionally equivalent to vitamin A-rich foods such as liver and liver oils. Vegetarians should use red palm oil, but those who are willing to include liver or liver oils in their diet would be better off for doing so.
Text: 'Vitamin A also protects from environmental toxins, childhood asthma, fatty liver disease, kidney stones and prevents oxidative stress'
Chris Masterjohn at 21:00
"Vitamin A is also important in protecting against
environmental toxins. It's important in protecting against
childhood asthma, fatty liver disease, kidney stones. preventing oxidative stress which is
associated with many degenerative diseases and so on down the list."
Text: 'Vitamin A along with D and K2 make a great smile'
Dentin is unique among the tissues of the teeth for its expression of osteocalcin, a vitamin K-dependent protein better known for its role in organizing the deposition of calcium and phosphorus salts in bone. In the infant rat, whose teeth grow very rapidly, dentin manufactures much more osteocalcin than bone does, suggesting that osteocalcin plays an important role in the growth of new dentin. Matrix Gla protein (MGP), which is required for the mineralization of bone, is also expressed in dentin. Vitamins A and D signal odontoblasts to produce osteocalcin and probably regulate their expression of MGP as well. Only after vitamin K2 activates these proteins' ability to bind calcium, however, can they lay down the mineral-rich matrix of dentin. The remarkable synergy between these three vitamins exactly mirrors the process Price observed. By Chris Masterjohn
Text: 'RDA Women 2300 IU Men 3000 IU'
Chris Masterjohn at 24:00
(RDA for Vitamin A) "...that's 3000 IU for adult males and 2300 IU for adult females"
by Greg Baumont
1st image: Eye macro
2nd image: Red Head
3rd image: Carrots
4th image: Liver with onion
5th image: Local butter
6th image: Look Closer
7th image: Playing with the moon
8th image: Window to your soul
smilFile by Jose Ramirez 2012